Re: [PATCH v2 07/12] parisc/percpu: Work around the lack of __SIZEOF_INT128__

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On Thu, Jun 1, 2023 at 6:32 AM Helge Deller <deller@xxxxxx> wrote:
>
> I don't think we need to care about gcc-10 on parisc.
> Debian and Gentoo are the only supported distributions, while Debian
> requires gcc-12 to build > 6.x kernels, and I assume Gentoo uses at least
> gcc-12 as well.
>
> So raising the gcc limit for parisc only (at least temporarily for now)
> should be fine and your workaround below wouldn't be necessary, right?

This absolutely sounds like the right option. Let's simplify the
problem space by just saying that parisc needs the newer compiler.

Right now we have that "minimum gcc version" in a somewhat annoying
place: it's in the ./scripts/min-tool-version.sh file as a shell
script.

I wonder if we could move the gcc minimum version check into the
Kconfig file instead, and make it easier to let architectures override
the minimum version.

I don't quite know how to do that sanely, though. I don't think we
have a sane way to error out at Kconfig time (except by forcing some
syntax error inside an 'if' statement or something horrendously hacky
like that).

Added Masahiro to the (already overlong) participants list.

                   Linus





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